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THE DIGESTIVE SYSTEM OF VERTEBRATES

BIRDS: Emu


Emu
Emu (photo by Dr. Ed Stevens)    (from CD Chapter 2)


Emu digestive tract
Figure 5.6.  Emu (Dromaius novaehollandiae) digestive tract (Stevens & Hume 1995)   (from CD Chapter 5)


Table 7.3.  Mean digesta retention time in birds  (from CD Chapter 7)
Mean digesta retention time in birds
Digesta transit time of birds tend to be short, and particles are generally retained longer than fluid digesta, but fluid was selectively retained in the ceca of the herbivorous ptarmigan. (From Stevens and Hume 1995)


Table 9.6.  (from CD Chapter 9)
Short chain fatty acids in the midgut of vertebrates

Dashes indicate absence of information. Contributions of SCFA to maintenance energy were estimated from the rate of SCFA production by in vitro isotope dilution or measurements of digesta flow. Total maintenance energy was either calculated as twice  the BMR or assumed to be equivalent to ad libitum digestible energy intake in captive, nonreproducing, adult animals. (From Stevens and Hume 1995)